I have a peer-to-peer network that is connected to a router with DHCP and Internet. I want to set up a 2003 server with domain and exchange on the same network for testing. Is it possible? The 2003 server has a network card connected to the router. I have the server set to a fixed IP address. I did it before with 2 network cards on the server, one connected to the router and the other connected other client machines. Is it the only way? At present, I have only one network card on the server, I got error when I ran dcdiag. I removed the DHCP on the server I still got the error “The DHCP/BINL service on the local machine …”